Connecticut · Unpaid invoice

Unpaid invoice in Connecticut small claims

Client won't pay your invoice? Collect it in small claims.

If a client or customer has not paid an invoice for work you delivered or goods you sold, small claims court is a low-cost way to collect. You do not need a lawyer. The strength of your case usually comes down to clear proof: the agreement or terms, the invoice, evidence the work or goods were delivered, and a record of your attempts to collect.

In Connecticut, small-claims cases are heard in the Small Claims Court (a session of the Superior Court) and you can sue for up to $5,000 (money damages only, or up to $15,000 for a home-improvement contract).

Unpaid invoice: steps that matter

  1. Send a final written demand (a clear statement of what is owed and a payment deadline) and keep proof you sent it.
  2. Gather your contract or written terms, the invoice, delivery/completion proof, and any messages showing the other side accepted the work.
  3. Confirm you are within the statute of limitations below before you file.
  4. File in the correct court for where the defendant is or where the work happened, and keep every date and document together.

Filing your Small Claims Writ and Notice of Suit (Form JD-CV-40) in Connecticut

  1. Complete the Small Claims Writ and Notice of Suit (Form JD-CV-40). Fill out Form JD-CV-40, typed or printed neatly, using only the exact, correct, legal names of the parties (no initials, nicknames, or abbreviations). Attach copies of supporting documents (leases, statements, invoices, bills) and keep the originals. Your signature must be notarized.
  2. Serve each defendant BEFORE filing. Serve the completed Writ and Notice of Suit, the Instructions to Defendant (Form JD-CV-122), and copies of all attachments on each defendant by one of four methods: priority mail with delivery confirmation; certified mail with return receipt requested; a nationally recognized courier with delivery confirmation; or service by a proper officer (e.g., a state marshal). Service by a proper officer is required for out-of-state businesses.
  3. File the original papers with the court within one month of service. After service is completed, file the original Writ and Notice of Suit plus a Statement of Service (Form JD-CV-123) for each defendant. These must be filed no later than one month after the date of service. File by mail, hand delivery, or e-file with the proper court (judicial district / housing session). Pay the entry fee at filing.
  4. Receive the docket number and answer date. After filing, the clerk's office assigns a docket number and an answer date (the date by which the defendant must respond) and mails an answer form and the answer date to each defendant. Do not come to court on the answer date.

Filing fees: The entry (filing) fee is $95, set by state law; you also pay the cost of service separately and may recover it if you win. Verify current fees with the court.

Deadline that applies to your unpaid invoice

An unpaid invoice is usually a contract or account claim. If you had a signed agreement or written terms, the written-contract statute of limitations below typically applies; a purely verbal deal usually falls under the oral-contract period. That statute is the deadline to file, so do not wait too long.

Written contract: 6 years (Conn. Gen. Stat. § 52-576)

Answering a lawsuit: Connecticut requires you to serve the defendant before you file. After you file, the clerk assigns an “answer date” and mails the defendant an answer form; the defendant responds by that date. Do not appear in court on the answer date.

Serving the defendant: The plaintiff must serve each defendant BEFORE filing, by one of four methods: (1) priority mail with delivery confirmation; (2) certified mail with return receipt requested; (3) a nationally recognized courier with delivery confirmation; or (4) service by a proper officer (e.g., a state marshal). Service by a proper officer is required for out-of-state businesses. Proof is filed as a Statement of Service (Form JD-CV-123).

Appeals: No appeal. Small claims judgments cannot be appealed.

This page is general information, not legal advice, and CaseBySelf is not a law firm. Rules, fees, and deadlines change and vary by court: verify with the specific court where you file. Source: Connecticut Judicial Branch - How Small Claims Court Works (CV045 booklet). Last reviewed 2026-06-23.